A large trucking company wants to estimate the proportion of its tracker truck population with refrigerated carrier capacity.. A random sample of200 tracker trucks is taken and 30% of the sample have refrigerated carrier capacity.The 95% confidence interval to estimate the population proportion is _______.

Select one:

a.0.25 to 0.35

b.0.27 to 0.33

c.0.53 to 0.67

d.0.24 to 0.36